Attachment for carburetors



July 17, 1928.

J. F. ABEL ATTACHMENT FOR cAnBuRfiToR-s 4 Filed March '19, 1924 PatentedJuly 17, 1928 UNITED s T s' .l'OHlSl' F, ABEL, OF BURLINGTON, IOWA.

ATTACHMENT non cARBURE moBs.

Application filed March 19, 1924. Serial No. 700,301.

This invention relates to an attachment for carburetors and 1s animprovement on my 'Patent Number 1,269,146, dated June 11,

1918, the object being to provide a carbu retor with means fordelivering water, glycerine and air to the same for increasing theeiiiciency of the explosive charge produced thereby, whereby greaterpower will be obtained from the mixture.

Another and further object of the inven= tion is to provide anattachment'for a. carburetor which is provided with a sight feedindicator having a valve for controlling the supply of water andglycerine to-the explosive charge produced by the carburetor whereby theamount of glycerine and water admitted to the explosive charge can beregulated from the dash of the motor vehicle to which the device isattached.

A still further object of theinvention is to provide means for admittinga small proportion of the exhaust gases of the internal combustionengine to which the attachment is applied, to the explosive charge intowhich is introduced a small amount ofai'r' from the atmosphere to supplythe necessary oxygen. Other and of the invention will be hereinafter setforth and the'novel features thereof defined by the appended claims. I a

In the drawings,

Figure 1 is a vertical section through a portion of a motor vehicleshowing an internal combustion engine inelevation with my improvedcarburetor attachment applied;

Figure 2 is a detail ection on line 2-2 of Figure 1; I p

Figure 3 is a vertical sectionthrough the sight feed indicator andcontrol; and

Figure 4 is a detail inverted section of the nipple for coni'iecting thepipe to the water jacket.

lathe drawing 1 indicates a body of 'a motor vehicle provided with aninstrument board 2. Arranged within the body is an internal combustionengine 3 which is provided with an exhaust manifold 4,.intake manifold 5and carburetor 6 which may be of any of the well known forms ofcarbu- Irotors now in use, the above description being given so that theapplication of my attachment can be readily understood. In theembodiment of the invention herein shown, I secure a. Y coupling 7 inthe wall of the mixing chamber of the-carburetor below the throttlevalve 8, the branches further objects and advantages 9 and 10 of whichare provided'with apertures 11 and 12 for admitting air into the fluidpassing therethrough as will behereinafter fully described. While I haveshown the Y coupling 7 installed in the mixing chamber below thethrottle valve, Ido not 7 wish to limit myself to placing this couplingat thls exact point, as I am aware that it can be disposed in the intakemanifold or 1n the carburetor-"above the throttle valve withoutdeparting from the spirit ofcmy in I vention.

Secured to the instrument boardc2 isa sight feed indicator 13 providedwith an inlet 14 and an outlet 15 to which are conneeted nipples 16 and17. The sight feed indicator is provided with a plug 18 at its upper endforming a valve casing which is provided w1th a removable valve seat 19in the form of a tube which extends down into, a glassv tube 20 of theindicator so that the passage of fluid through the tube 19 will bevislble from the drivers seat of the motor vehicle 7 Mounted within theplug 18 is a threaded valve stem 21 which is provided with a needlevalve 22 at itslower end adapted to cooperate with the seat 19 forregulating the passage of fluidthrough the indicator or for completelycutting off the passage of fluid therethrough, the valve being providedwith a wheel 23'at its upperend for manipulating the same.

v Secured in the nipple 16 of the indicator 'by coupling 24 is one endof a copper pipe 25}, the other end of which is secured toa n1pple26 bya coupling 27, said nipple 26 being tapped Into the water jacket of theinternal combustion engine and is provided w1th a screen 35 forpreventing foreign par ticles 1n the Water from being drawn throu h thesame. Y a

'ljhe nipple 17 is providedwith a coupling 28 1n which is securedone endof a copper pipe 29, the other end of which is secured to the branch 9of the Y7 by a coupling-30 By thisconStruction the water in the Watercirculating system of the motor vehicle is.

drawn by the suction induced in the charge forming devlce through thesight feed indicator and delivered into the explosive charge, air beingadmittedat 11 so as to aerate the end of which is secured to a nipple34, which is tapped into the exhaust manifold 4:, preferably back of thesecond cylinder of the internal combustion engine.

The exhaust gases are drawn by the suction of the engine cylinderthrough the pipe 32 and air is admitted atthe aperture 12 in the branch10 of the Y 7 so as to reduce the temperature-of these exhaust ases to aC61 tain extent and to supply additional oxygen.

It will be noted that the Y 7 which is tapped into the carburetor is soconnected to the water circulatingsystem and the exhaust gas manifoldthat the exhaust gases and water are firstsupplied with air from theatmosphere and then this exhaust gas and Water are mixed and deliveredinto the explosive charge so as to increase the moisture of theexplosive charge, whereby the formation of carbon in the cylinders ofthe internal combustion engines will be reduced to a minimum. y

In order to supply an alcohol to the water which is delivered to theexplosive charge, I place within the radiator or cooling system. of theinternal combustion engine an alcohol, such'as glycerine or the like,which becomes thoroughly mingled with the water and is delivered withthe water being drawn into the explosive charge by the suction of theengine into the cylinders of the engine with the explosive charge so asto moisten and supply glycerine to prevent the forma tion of carbon andto increase the eliiciency of the explosive charge.

As the amount of glycerine and water cleliver'ed to the explosive chargeis small in comparison with the capacity of the cooling system of theinternal combustion engine, the amount drawn from the cooling systemdoes not in any way affect the eiiiciency of the cooling system of theinternal combustion engine and I am able to produce an explosive chargefor an internal combustion engine which will increase the mileage andproduce a charge which has many advan- 'tages over the ordinaryexplosive charge now produced by a carburetor.

From the foregoing description it will be seen that I have provided acarburetor at tachment in whichwater and glyccrine are drawn into theexplosive charge mixed with air and at the same time a portion of theproducts of combustion which are cooled by the admission of air from theatmosphere is delivered with the glycerine and water into the'explosivecharge at such a'point that it thoroughly mingles with the explosivecharge and produces an explosive charge of high eiiiciency.

What I claim is 2- 1. The combination with an internal combustion enginehaving a water cooling system containing water and glycerine, anexbureti-ng passage of the charge forming device, each branch of the Ybeing provided with an air inlet, means for supplying glycerine mixedwith water from the cooling system of said internal combustion engine toone branch of the Y'coupling, and means for supplying exhaust gases tothe other branch of said Y coupling "from the exhaust manifold of saidinternal combustion engine.

2. The combination with an internal combustion engine having a watercooling system, exhaust manifold, intake manifold vand charge formingdevice connected thereto, of a Y coupling in communication with thecharge. forming device, means for supplying glycerine mixedwith water tosaid Y coupling from said water cooling system, means for supplyingexhaust gases to said TY coupling, said Y coupling being provided withair inlets for supplying air to the fluid passing through said couplingand means for indicating the flowof water and glycerine to said couplingfrom said water cooling system.

3. The combination with an internal combustion engine having a watercooling system, exhaust manifold, intake manifold and charge formingdevice connected I thereto, said water cooling system being adapted "tocontain water and glycerine, of'a Y coupling arranged in the chargeforming device, each branch of the Y coupling being provided with anopening for admitting air thereto, means for supplying glycerine mixedwith water from said cooling system to one branch of said Y coupling,means for supplying exhaust gases to the other branch of said Ycoupling, means for indicating the flow of water and glycerine from saidcool ing system to said coupling and means for controlling the supply ofwater and glycerine to said coupling.

4;. The combination with an internal combustion engine of a carburetorfor producing an explosive charge for said engine, a coupling incommunication with the mixing chamber of said carburetor provided withair inlets, means for delivering to said coupling a mixture of water andglycerine, means for delivering to said coupling exhaust gases producedby said engine, said exhaust gases and mixture of water and glycerinebeing mixed with air through the air inlets of said coupling before theyare delivered to the mixing chamber of said coupling and means forcontrolling the volume of water and glycerine delivered to saidcoupling. v

In testimony whereof I hereunto aflix my signature.

JOHN F. ABEL,

